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nexus9112 [7]
3 years ago
15

 In the first week of​ July, a record 1 comma 120 people went to the local swimming pool. In the second​ week, 100 fewer people

went to the pool than in the first week. In the third​ week, 130 more people went to the pool than in the second week. In the fourth​ week, 198 fewer people went to the pool than in the third week. What is the percent decrease in the number of people who went to the pool over these four​ weeks?
Mathematics
1 answer:
V125BC [204]3 years ago
3 0

Answer:21 of course

Step-by-step explanation:

Quick maths

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Help me please i dont understand
ELEN [110]

Answer:

6/5 or 1.2, they're the same value

Step-by-step explanation:

When it says "rate of change", it's really just asking for the slope. If you don't know what the slope is, essentially how much the y-value increases by whenever x increases by 1. This can be formally defined using the equation: \frac{y_2-y_1}{x_2-x_1} which is essentially \frac{rise}{run}. The subtraction is finding the difference between the two numbers to see how much it's changed by. Btw the order doesn't matter, I could plug in (-3, -2) as (x2, y2) or I could plug it in as (x1, y1) as long as I make sure to input it in correctly. In this example I'll just say (-3, -2) = (x1, y1) and (2, 4) = (x2, y2). Plugging these values into the equation gives you: \frac{4- (-2)}{2- (-3)} = \frac{6}{5} that's the rate of change

8 0
2 years ago
If f^-1(x) is the inverse of f(x), which statement must be true?
k0ka [10]
F(f-1x)   will be equal to x

take a simple example 

f(x) = 2x

so x = f(x) / 2

 f-1(x) = x/2

f(f-1x) =  2 ( x/2)  = 2 * x/2 = x
5 0
3 years ago
Read 2 more answers
In the 2001-2002 season Susan bird the WNBA team the Seattle storm made 27% of her 3 point shots write this percent as a decimal
Ronch [10]

Answer: 0.27

Step-by-step explanation:

Move the decimal two places to the left

6 0
3 years ago
I don’t know what the last one is
joja [24]

But its still not that much info what is the answers for it if there is no answer

How are you finding what does x equal

8 0
3 years ago
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On a skiing trip there are five people but only three pairs of skis how many different groups of three could ski
____ [38]
10 different groups can ski.

This is a combination of 5 items taken 3 at a time:
_5C_3=\frac{5!}{3!(5-3)!}=\frac{5!}{3!2!}=\frac{120}{12}=10
3 0
3 years ago
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